diff --git a/Plugins/Plugin/DrvierService.cs b/Plugins/Plugin/DrvierService.cs
index a1db1b8..9a87bb6 100644
--- a/Plugins/Plugin/DrvierService.cs
+++ b/Plugins/Plugin/DrvierService.cs
@@ -26,7 +26,11 @@ namespace Plugin
             _logger = logger;
             try
             {
-                _logger.LogInformation("LoadDriverFiles Start");
+                var env_DriverPath = Environment.GetEnvironmentVariable("IOT_DriverPath");
+                if (!string.IsNullOrEmpty(env_DriverPath) && Directory.Exists(env_DriverPath))
+                    DriverPath = env_DriverPath;
+
+                _logger.LogInformation($"LoadDriverFiles Start,Path:{DriverPath}");
                 driverFiles = Directory.GetFiles(DriverPath).Where(x => Path.GetExtension(x) == ".dll").ToArray();
                 _logger.LogInformation($"LoadDriverFiles End，Count{driverFiles.Count()}");
             }
diff --git a/Plugins/Plugin/IoTBackgroundService.cs b/Plugins/Plugin/IoTBackgroundService.cs
index 6cc9c58..e8e6fe4 100644
--- a/Plugins/Plugin/IoTBackgroundService.cs
+++ b/Plugins/Plugin/IoTBackgroundService.cs
@@ -1,5 +1,6 @@
 using Microsoft.Extensions.Configuration;
 using Microsoft.Extensions.Hosting;
+using Microsoft.Extensions.Logging;
 using System;
 using System.Collections.Generic;
 using System.Linq;
@@ -12,35 +13,52 @@ namespace Plugin
 {
     public class IoTBackgroundService : BackgroundService
     {
+        private readonly ILogger<IoTBackgroundService> _logger;
         public static DBTypeEnum DBType;
         public static string connnectSetting;
         public static Guid? VariableSelectDeviceId, ConfigSelectDeviceId;
-        public IoTBackgroundService(IConfiguration ConfigRoot)
+        public IoTBackgroundService(IConfiguration ConfigRoot, ILogger<IoTBackgroundService> logger)
         {
+            _logger= logger;
             var connnectSettings = new List<ConnnectSettingsModel>();
             ConfigRoot.Bind("Connections", connnectSettings);
             connnectSetting = connnectSettings[0].Value;
+            DBType = GetDBType(connnectSettings[0].DBType);
+            //read from Environment
+            var IoTGateway_DB = Environment.GetEnvironmentVariable("IoTGateway_DB");
+            var IoTGateway_DBType = Environment.GetEnvironmentVariable("IoTGateway_DBType");
+            if (!string.IsNullOrEmpty(IoTGateway_DB) && !string.IsNullOrEmpty(IoTGateway_DBType))
+            {
+                connnectSetting = IoTGateway_DB;
+                DBType = GetDBType(IoTGateway_DBType);
+            }
+            _logger.LogInformation($"IoTBackgroundService connnectSetting:{connnectSetting},DBType:{DBType}");
+        }
 
-            switch (connnectSettings[0].DBType.Trim().ToLower())
+        private DBTypeEnum GetDBType(string dbtypeStr)
+        {
+            DBTypeEnum dbType = DBTypeEnum.SQLite;
+            switch (dbtypeStr.Trim().ToLower())
             {
                 case "oracle":
-                    DBType = DBTypeEnum.Oracle;
+                    dbType = DBTypeEnum.Oracle;
                     break;
                 case "mysql":
-                    DBType = DBTypeEnum.MySql;
+                    dbType = DBTypeEnum.MySql;
                     break;
                 case "pgsql":
-                    DBType = DBTypeEnum.PgSql;
+                    dbType = DBTypeEnum.PgSql;
                     break;
                 case "sqlite":
-                    DBType = DBTypeEnum.SQLite;
+                    dbType = DBTypeEnum.SQLite;
                     break;
                 case "memory":
-                    DBType = DBTypeEnum.Memory;
+                    dbType = DBTypeEnum.Memory;
                     break;
                 default:
                     break;
             }
+            return dbType;
         }
         protected override Task ExecuteAsync(CancellationToken stoppingToken)
         {